Olympus Corporation

Denso Corporation

Kuraray Co., Ltd.

Yukie Hashimoto

Takamoto Watanabe

Takashi Ishikawa

Ryokei Endo

Yosuke Washitake

Akihiro Uehata

Provided are an amorphous polyetherimide fiber having not only a small single fiber fineness suitable for producing fabrics, and a fabric comprising the amorphous polyetherimide fiber. The fiber comprises an amorphous polyetherimide polymer having a molecular weight distribution (Mw/Mn) of less than 2.5, and having a shrinkage percentage under dry heat at 200&#xb0; C. of 5% or less, and a single fiber fineness of 3.0 dtex or less. The fiber may have a tenacity at room temperature of 2.0 cN/dtex or greater.

Amorphous polyetherimide fiber and heat-resistant fabric

The invention provides a position control system comprising a moving portion that is movable, a position-detection portion that detects a position of the moving portion, a drive portion that applies driving force to the moving portion thereby moving the moving portion, a control portion that controls the driving force of the drive portion, and an input portion for inputting a drive target position for the moving portion, characterized in that the control portion is operable to determine the driving force to be applied to the drive portion based on a correction coefficient acquired based on a first deviation that is a difference between the drive target position inputted into the input portion and the reference position, and a second deviation that is a difference between a position detected by the position-detection portion and the drive target position inputted into said input portion.

Position control system

An A/D conversion apparatus includes an N-stage pulse circulating circuit including N (N is a natural number, N&#x2267;3) inverting circuits connected in a ring shape, the inverting circuits delaying an input pulse signal by a delay time corresponding to an amplitude of a separately input analog input signal, and outputting inverted pulse signals obtained by inverting the pulse signal, a counter unit that counts a number of circulations by which the pulse signal has circulated in the pulse circulating circuit within a predetermined time based on the inverted pulse signal output from one of the N inverting circuits, and a switching unit that switches an output destination of the inverted pulse signal, which is output from an inverting circuit of an M(M is an odd natural number, 1&#x2266;M&#x2266;N&#x2212;1) stage of the pulse circulating circuit, according to a change in an operation environment.

A/D conversion apparatus having an N-stage pulse circulating circuit

An A/D conversion device includes an A/D conversion circuit that converts an inputted analog signal to digital data and outputs it, a digital signal correction unit that performs a correction process to the digital data and outputs a digital signal, and a phase compensation unit that performs phase compensation in accordance with a phase delay amount of the digital signal with respect to the analog signal generated in the A/D conversion circuit and the digital signal correction unit wherein the A/D conversion circuit comprises a pulse transit circuit, a transmit position detection structure, and a digital data creation structure, the delay characteristic of the digital data being identified from the inputted analog signal.

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Tokyo, Japan

Yukie Hashimoto